Golang SQL Export CSV

package main

import (
	"database/sql"
	"log"

	_ "github.com/go-sql-driver/mysql" // or the driver of your choice
	"github.com/joho/sqltocsv"
)

type Post struct {
	ID         string
	Post_title string
}

func main() {
	db, err := sql.Open("mysql", "root:12345@tcp(127.0.0.1:3306)/db_test")

	if err != nil {
		log.Fatal("Failed to open a DB connection: ", err)
	}
	defer db.Close()

	rows, err := db.Query(`
		SELECT * FROM wp_post p
	`)

	var myPost Post
	var count int
	for rows.Next() {

		err := rows.Scan(&myPost.ID, &myPost.Post_title)
		if err != nil {
			log.Fatal(err)
		}
		count += 1

		fmt.Println(count, "PostID:", myPost.ID, myPost.Post_title)

	}

	err = sqltocsv.WriteFile("export.csv", rows)
	if err != nil {
		panic(err)
	}

}